C＃DataGridView - 克隆行到“NewRow”用于编辑目的 [英] C# DataGridView - Clone Row to "NewRow" for editing purposes

问题描述

大家好！



我的项目的一部分是让用户可以选择将行克隆/复制到他们想要制作的底部newrow 1或2个单元格编辑。这就是我到目前为止完成这项任务的目的。

Hi everyone!

Part of my project is to give the user an option to clone/duplicate a row to the bottom "newrow" incase they want to make 1 or 2 cell edits. This is what I have so far in accomplishing this mission.

try
            {
                highlightBottomRow();
                setDuplicateRowValues();
                setNewRowCellValues();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }

setDuplicateRowValues应该将选定的行单元格复制到变量（每个单元格1个变量）。 setNewRowCellValues应该设置newrow（编辑行）中单元格的值，包含变量所包含的值。是否有更有效的方法（即使用克隆方法）？第一列是一个ID列，我们想要增加每个新的添加（无论它是一个重复的行还是一个全新的行，并保持第一列是只读的）。我有25列，希望它尽可能提高性能。



谢谢大家！

setDuplicateRowValues is supposed to copy the selected row cells to a variable (1 variable per cell). setNewRowCellValues is supposed to set the values of the cells in the newrow(editing row) the values of what the variables contain. Is there a more efficient way to do this (i.e. with the Clone method)? The first column is an ID column and we want to increment each new addition (no matter if it''s a duplicated row or a row created brand new and keep the first column read-only). I have 25 columns and want this to be as performance efficient as possible.

Thanks everyone!

推荐答案

DataRow有一个ItemArray属性，它将所有字段值表示为对象[]。



DataRow existingrow = //您现有的行;

var newrow = tbl.NewRow（）;

newrow.ItemArray = existingrow.ItemArray;



如果你没有配置DataTable的架构，那么只需增加ID。这为您提供了一些保护，以防止将来的列更改和数据类型一致性。应该更快 - 但我自己还没有基准测试。

DataRow''s have an ItemArray property that represent all the field values as an object[].

DataRow existingrow = //Your existing row;
var newrow = tbl.NewRow();
newrow.ItemArray = existingrow.ItemArray;

And then just increment the ID if you''re DataTable''s schema isn''t configured to do so. This gives you a bit of protection against future column changes and data type consistency. Should be faster too - haven''t benchmarked it myself yet though.

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